Bisamide sarcomere activating compounds and uses thereof
a technology of activating compounds and bisamides, which is applied in the field of substituting bisamide derivatives, can solve the problems of dilated and hypocontractile hearts, decreased cardiac sarcomere activity, and heart failure, and achieve the effect of increasing the activity of cardiac sarcomer
Examples
example 402
of (2R,4S)—N—((R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methyl)-4-fluoro-1-(3-(methylsulfonyl)benzoyl)pyrrolidine-2-carboxamide
Step 1: Preparation of (2R,4S)-tert-butyl 2-(((R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methyl)carbamoyl)-4-fluoropyrrolidine-1-carboxylate
[0349](R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methanamine hydrochloride (Intermediate 9.5, 1.4 g, 5.14 mmol), TBTU (1.7 g, 5.14 mmol), and (2R,4S)-1-Boc-4-fluoropyrrolidine-2-carboxylic acid (1.2 g, 5.14 mmol) were added to a 100-mL round-bottom flask. DCM (26 mL) was added and the reaction was stirred at rt as DIPEA (2.70 mL, 15.43 mmol) was introduced in a single portion. The reaction was stirred at rt for 30 min. The crude solution was then carried on directly to the subsequent step. LCMS (POS.) m / z: 471.0 (M+Na)+.
Step 2: Preparation of (2R,4S)—N—((R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methyl)-4-fluoropyrrolidine-2-carboxamide
[0350]Crude (2R,4S)-tert-butyl 2-(((R)-cyclopropyl(2-...
example 364
of (R)—N—((R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methyl)-1-(3-(methylsulfonyl)benzoyl)pyrrolidine-2-carboxamide
Step 1: Preparation of (R)-tert-butyl 2-(((R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methyl)carbamoyl) pyrrolidine-1-carboxylate
[0353]A 50 mL round bottom flask with magnetic stir bar was charged with (R)-cyclopropyl(2-fluoro-4-(trifluoromethyl)phenyl)methanamine hydrochloride (Intermediate 9.5, 940 mg, 3.49 mmol), DIPEA (1.82 mL, 10.5 mmol), N-(tert-butoxycarbonyl)-D-proline (750 mg, 3.49 mmol), and TBTU (1.12 g, 3.49 mmol) in DCM (7.0 mL). The reaction was stirred at rt for 4 h and then washed once with 1N HCl and then once with brine. The organics were separated, dried over sodium sulfate, and concentrated under reduced pressure. The crude product was adsorbed onto silica gel and purified by column chromatography (silica gel, 230-400 mesh) using 0-100% EtOAc / hexanes to give the title compound as a white solid (1.45 g, 3.37 mmol). 1H NMR (500 MHz, chlo...
example route b
[0358]
Step 1
[0359]3-(chlorosulfonyl)benzoyl chloride (0.091 mL, 0.379 mmol) was dissolved in DCM (1.0 mL) at 0° C. DIPEA (0.165 mL, 0.948 mmol) was added followed by (R)—N-(4-(trifluoromethyl)benzyl)pyrrolidine-2-carboxamide (Intermediate 28.0, 0.06 g, 0.190 mmol) dropwise over 15 minutes. Sarcosine methyl ester hydrochloride, DMAP (0.023 g, 0.190 mmol), and DIPEA (0.165 mL, 0.948 mmol) were then added and the reaction was warmed to rt for 60 min. The crude material was filtered through a 0.45 μm syringe tip filter and purified by preparative HPLC (XSelect CSH Prep C18 10 μm ODB 19×100 mm, A: water 0.1% formic acid B: acetonitrile 0.1% formic acid, gradient: 25% (2 min), 25-70% (12 min), flow rate: 40 mL / min, monitored @ 215 nm) to give methyl (R)-2-(N-methyl-3-(2-((4-(trifluoromethyl)benzyl)carbamoyl)pyrrolidine-1-carbonyl)phenylsulfonamido)acetate, Example 346 (13 mg) as a fluffy white solid. 1H NMR (400 MHz, chloroform-d) δ ppm 7.27-7.92 (m, 9H), 7.24-7.25 (m, 1H), 4.62-4.76 (m, ...
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Abstract
Description
Claims
Application Information
- IPC
- C07D403/12; C07D401/14; C07D401/12; C07D405/12; C07D413/14; C07D207/16; C07D209/52; A61P9/00
- CPC
- C07D403/12; C07D401/14; C07D401/12; A61P9/00; C07D413/14; C07D207/16; C07D209/52; C07D405/12
- Inventors
- ASHCRAFT, LUKE; BOEZIO, ALESSANDRO